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The PH stays very stable, I just put the range in there because it is hard for me to really tell what color it is on the API High range color chart, leaning towards the 8.0, but it is always the same...

Similar situation here too, just to be clear.... If I want to do a 50% water change on a 29 gallon tank, I should dose Prime for 29 gallons directly into the tank first (before or after removing old...